Added include flag to Species model.
Split off the protocol related fields from Checklist into Protocol and ProtocolType.

This allows new protocols to be easily added to the database. Previously
the types of protocol were hard-wired into the model.
Added migration to move coordinates to Detail objects.

The lat and long fields on Entry are moved to Detail to allow
multiple coordinates to be reported for a given Entry. The fields
were originally added to Entry before South was re-added for
migrations. The long field on Entry was renamed to lon to avoid
a clash with a built-in name.
Removed the demo project for the app.

Instead it will be added as a separate repository.
Updated for version 0.2.0.